MELBOURNE, May 1 (Reuters) - Alcoa's ( AA ) order book

for the second quarter remained strong and the company is yet to

see a drop in orders related to the tariffs imposed by U.S.

President Donald Trump, CEO William Oplinger said on Thursday.

The aluminum producer said last month during its

first-quarter post-earnings conference call it expects U.S.

tariffs on aluminium imports from Canada to cost the company

about $90 million in the second quarter.

(Reporting by Melanie Burton in Melbourne and Renju Jose in

Sydney; Editing by Muralikumar Anantharaman)